The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 31, 2015
Filed:
May. 19, 2014
Applicant:
Inductotherm Corp., Rancocas, NJ (US);
Inventor:
Oleg S. Fishman, Maple Glen, PA (US);
Assignee:
Inductotherm Corp., Rancocas, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 33/12 (2006.01); C01B 33/037 (2006.01); C30B 11/00 (2006.01); C30B 29/06 (2006.01);
U.S. Cl.
CPC ...
C01B 33/037 (2013.01); C30B 11/003 (2013.01); C30B 29/06 (2013.01);
Abstract
The present invention is apparatus for, and method of, purification of silicon by electric induction heating and melting of silicon in a crucible or susceptor vessel, with subsequent directional partial cooling of the silicon melt to an initial amorphous-to-crystalline (solidification) temperature to produce a directionally solidified purified quantity of silicon and a separate quantity of high impurity silicon. The quantity of high impurity silicon is removed from the vessel and the purified quantity of silicon at solidification temperature is remelted in the vessel for removal from the vessel or further processing.